FEATURES
Universal Converter is a port-powered or externally powered two-channel RS-232 to RS-422/RS-485 converter.
It converts TD and RD RS-232 lines to balanced RS-422 or RS-485 signals.
RS-485 is an enhanced version of the RS-422 standard, allowing multiple drivers and receivers on a two-wire system.
The unit is powered from the RS-232 data and handshake lines whether the lines are high or low or if there is not enough power on the port, it can be powered by an external +12VDC 100mA supply.
The 4WSD9R has DB-9 female connectors on both the RS-232 side and the RS-485 side.
SPECIFICATIONS
RS-232 Side:
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Connector: DB-9 female (DCE) |
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Signals: Passes through pins 3 (TD) and 2 (RD) |
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Pins 7 (RTS) and 8 (CTS) are tied together |
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Pins 4 (DTR), 6 (DSR), and 1 (CD) are tied together |
RS-422/RS-485 Side:
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Connector: DB-9 female |
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Signals: RS-485 2-wire half-duplex, or RS-485 4-wire full-duplex, or RS-422 4-wire full-duplex depending on switch configurations |
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Data Rates: Up to 115.2 kbps |
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Distance: Externally powered transmits up to 4000 ft (1200 m) at 115.2 kbps (may be less with port powering) |
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Dimensions: 3.0 x 1.6 x 0.8 in (7.8 x 4.3 x 2.0 cm) |
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